Finding the right one article number for Nissan PSF fluid often turns into a real headache for owners of Japanese cars. In spare parts catalogs you can find dozens of similar numbers, differing only in the last number or letter, which confuses even experienced auto mechanics. An incorrectly selected fluid can not only worsen the performance of the steering, but also lead to the failure of an expensive power steering pump.
Every owner Nissan X-Trail, Nissan Qashqai or Nissan Teana must understand that the power steering system is a hydraulic mechanism that requires ideal compatibility of the chemical composition of the lubricant with seals and metals. Error in choice original oil may cost the owner thousands of rubles to repair. In this article, we will analyze in detail which part numbers are correct for different generations of the brand’s cars.
Original specifications and classification of liquids
You need to start your search by understanding that Nissan uses several types of fluids for its power steering systems. Historically, the manufacturer has long relied on the DEXRON specification, but in recent decades has moved to in-house designs. The main standard for modern models is Nissan Genuine PSF, which has a specific red color and unique additives.
Vehicles built before the mid-2000s often required fluid to meet specifications ATF Matic D or ATF Matic J. This is important to consider when searching for an article, since the use of modern synthetics in old pumps can lead to swelling of the seals. If you have Nissan Primera or Nissan Sunny early years, you need to check the service book, where the exact type is indicated ATF, not PSF.
The key factor when choosing is not only the name, but also the viscosity characteristics. Modern hydraulic fluids have low viscosity at low temperatures, which ensures easy steering rotation even in severe frosts. Ignoring this parameter when buying a cheap analogue often ends in the destruction of the pump blades on the first winter trip.
Particular attention should be paid to the fact that even within the line of original oils there are differences. For example, the fluid for electric power steering (EPS) may be different from that used in a classic hydraulic pump. Always check compatibility with your amplifier type before purchasing.
Current articles of original liquids
The most reliable way to get the right one article number — refer to the official spare parts catalogues. However, manufacturers often change license plates, which creates confusion. For most modern models Nissan (since 2010) the main article is KLF50-00001 or KLF50-90001. These are canisters with a volume of 1 liter and 4 liters, respectively.
There is also a liquid with the article number KLF50-00002, which is often supplied in barrels for car services. It is important not to confuse these numbers with similar transmission products, since they may have the same color, but the chemical composition may be different. Usage transmission oil in power steering is strictly prohibited by the design of the system.
For older models such as Nissan Patrol or Nissan Pathfinder first generation, classic liquid may be required 26040-01P02. It is also red, but has a different base. If you are not sure about the type of your power steering, it is best to conduct a quick compatibility test or completely replace the fluid and flush the system.
The table below shows the main original numbers that are on sale:
| Article | Volume | Application | Compatibility |
|---|---|---|---|
| KLF50-00001 | 1 liter | Original PSF | X-Trail, Qashqai, Teana |
| KLF50-00002 | 4 liters | Original PSF | Patrol, Terrano |
| 26040-01P02 | 1 liter | Classic ATF | Primera, Sunny, old models |
| 26040-41P00 | 1 liter | ATF Matic D | Old type pumps |
Popular analogues and their articles
Original liquids Nissan They are often expensive, which pushes owners to look for high-quality analogues. A good alternative is branded products Pentosin and Febi, which are officially certified for use in Japanese cars. For example, Pentosin CHF 11S has an article number 11.0138 and is excellent for most power steering systems where low viscosity oil is required.
Another popular option is Idemitsu, which produces oils that are often poured into cars off the assembly line. Their product Idemitsu PSF has an article number 92300-00041. This oil fully meets specifications Nissan and is often cheaper than the original, as it is produced by the same holding company.
When choosing an analogue, it is important to pay attention to the tolerances. The label must indicate compliance with the specification Nissan PSF or Ata 310. If the manufacturer specifies only universal use without specific brands, it is better to refrain from purchasing as the risk of damaging the system is too high.
Don't skimp on volume. A standard power steering system holds about 0.7–0.9 liters of fluid, so a 1 liter canister is usually sufficient for a complete replacement. Purchasing a 4-liter container only makes sense when planning to change the transmission fluid or if you service multiple vehicles.
- Classic hydraulic
- Electric power steering (EPS)
- Electromechanical amplifier
- I don't know for sure
⚠️ Attention: Counterfeits of original canisters Nissan meet very often. The fake fluid could simply be colored water or cheap mineral oil, which will quickly evaporate and cause the pump to jam. Always check the integrity of the packaging, the presence of holograms and the quality of label printing before purchasing.
Checking compatibility by VIN code
The most accurate way to determine the right one article number — use the VIN code of your car. Even within the same model, for example Nissan Murano, there may be different steering modifications depending on the year of manufacture and the sales market. Enter the code in the official dealer catalog or on specialized spare parts websites.
The system will show not only the oil number, but also the code of the sealing rings, if they are required during replacement. This is especially true for old cars, where rubber products become tanned over time and begin to leak fluid. Ignoring the need to replace seals when changing the oil often leads to repeated leaks after just a couple of thousand kilometers.
Please note that for some models Nissan (For example, Leaf or Ariya) the booster system can be electric (EPS) and require no fluid at all. In such cases, searching for a PSF article number will be pointless, since there is simply no oil in the system. Make sure you have the type of steering wheel drive before you waste time ordering.
Why may the VIN code not give an accurate answer?
Sometimes the database lists several fluid options for one model. It depends on the manufacturer and batch. In such cases, it is better to check the color of the liquid already poured into the tank, or consult with the dealer by phone, citing the chassis number.
Replacement procedure and required tools
Fluid replacement Nissan PSF is a task that you can do yourself if you have a minimum set of tools. You will need a syringe for pumping out old fluid, a funnel, a new filter (if provided for in the design) and, of course, fresh oil. It is important to maintain cleanliness to prevent dirt from entering the system.
Before starting work, warm up the engine and turn the steering wheel left and right several times. This will help circulate and force most of the old fluid out of the pump and steering rack. Unscrew the reservoir cap and use a syringe to pump out as much oil as possible. Do not try to drain it completely, as access to the drain plugs is often blocked by other units.
Fill in new oil to the level MAX on the cover dipstick. Start the engine and let it idle, turning the steering wheel all the way in both directions. Monitor the level and add fluid as needed, as it will fill the volume of the system. The process is repeated until clear liquid of a new color comes out of the tank.
☑️ Preparing for an oil change
If you don't have a syringe, use a medical bulb or a special vacuum pump for liquids. Conventional hoses often cannot effectively pump out thick oil from a narrow reservoir neck.
Risks of using low-quality liquids
Using an uncertified liquid is a lottery in which the owner often loses. Wrong chemical composition may cause corrosion of metal parts of the pump or destruction of rubber seals. The rubber may begin to swell, blocking the channels, or, conversely, dry out, leading to leaks.
Liquids that fail low-temperature viscosity tests are especially dangerous. In cold weather, they thicken so much that the pump cannot pump them, which leads to the drive belt breaking or the blades breaking. Symptoms of this manifest themselves in the form of a squeaking sound when turning the steering wheel in the first minutes after starting the engine in winter.
Long-term consequences also include wear and tear on the steering rack. Factory additives in the original Nissan PSF create a protective film on the surface of gears and racks. Cheap analogues often lack this property, which leads to the rapid appearance of play and knocking in the steering.
⚠️ Attention: If after changing the fluid you hear a hum or vibration on the steering wheel, stop using the vehicle immediately. This may indicate that air has entered the system or that the fluid used is incompatible with the seal materials.
Leak diagnostics and system maintenance
Constantly adding fluid is a sure sign of a leak. Check the condition of the high and low pressure hoses, as well as the pump seals. Often the problem lies in a cracked rubber pipe, which can be replaced without resorting to major repairs. Use fluorescent dye to search for microcracks, which is added to the oil and is visible under an ultraviolet lamp.
Regular checking of the fluid level and condition should be part of routine maintenance. If the oil turns black or has metal filings in it, this is a signal that the pump is wearing out. In this case, simply changing the oil may not help, and the pump will need to be replaced or the entire system flushed.
Do not ignore replacement interval recommendations. Although many manufacturers claim “lifelong” lubrication, the actual lifespan of the fluid is about 60-80 thousand kilometers. Frequent replacement will extend the life of your steering and save you money on repairs in the future.
Regularly replacing your original Nissan PSF fluid is the cheapest way to extend the life of your steering system and avoid costly pump repairs.
Frequently asked questions from owners
Is it possible to mix different types of Nissan PSF fluid?
It is strictly not recommended to mix different types of liquids, even if they are the same color. Chemical additives can react and release sediment that clogs the system's filters and channels. When mixing, it is better to completely drain the mixture and refill with fresh original oil.
How often do you need to change your Nissan power steering fluid?
Despite statements about the “lifetime”, experts recommend changing the fluid every 40-60 thousand kilometers or every 3-4 years. This is due to the fact that oil loses its properties over time and absorbs moisture from the air through the ventilation system.
What color should the original Nissan PSF fluid be?
Original Nissan PSF fluid is bright red in color. If you see oil of a different shade (green, yellow or black), it is either an analogue or an old, oxidized liquid. A change in color to black indicates overheating and destruction of the oil base.
What to do if air (foam) has formed in the system?
The appearance of foam in the tank indicates air has entered the system. It is necessary to bleed the system: start the engine and smoothly turn the steering wheel from lock to lock several times. If the foam does not go away, check the tightness of all hoses and the fluid level.